searching for a particular new trek kirk/spock fic

[faith-girl222.livejournal.com]

dear new trek fandom: if you could please tell me which fic includes the following, i would be very grateful.
(1) kirk having to convince spock to not resign his commission/to be first officer
(2) they are in kirk's quarters
(3) spock finds kirk distracting (possibly specifically his thighs) while kirk is sitting in his chair
(4) they have semi-D/s sex in the chair, possibly with choking. and
(5) at the end kirk makes a joke about how they need to do it in the captain's chair on the bridge next time.

i cannot figure out which fic this was, cannot find it in my bookmarks, cannot even vaguely think what it was called let alone who wrote and it is making me crazy. i remember that it had prety decent writing, hot sex and enjoyable characterizations, including a lot of dialogue for a fic that was basically just porn.